词汇与结构 As long as the thrust continues to be greater than the drag, the airplane continues to _____.

With the increase of pressure altitude, . A: thrust increases, drag increases, thrust minus drag increases B: thrust decreases, drag decreases, thrust minus drag increases C: thrust decreases, drag decreases, thrust minus drag decreases D: thrust decreases, drag decreases, thrust minus drag does not change

Which one is the essential of Bazou shi? A: Ensure the force of strike under control. Do not exert sudden force. B: Lift with upward palms,cross palms and separate hands outwards C: Concentrate strength on arms ,push forward D: Cross with upward palms and push forward

Which one is the essential of Tuiba Shangqiao? A: When pushing against each other, the amount of force exerted should be appropriate. Avoid sudden exertion of force during the pushing and pulling. B: Lift with upward palms,cross palms and separate hands outwards C: Concentrate strength on arms ,push forward D: Slowly raise the arms with straight elbows, push forward arms and squat down, pull back with strength, and then stand up.

By doing the "tank test", the engineers can find out() A: the amount of air in the plane B: the strength of the plane structure C: the pressure inside and outside the plane D: the power of the airplane engines